| 施钾对华北高寒区饲用玉米产量与营养品质的影响 |
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| 引用本文： | 左启华,李会彬,张立峰,杜雄,边秀举. 施钾对华北高寒区饲用玉米产量与营养品质的影响[J]. 玉米科学, 2011, 19(2): 119-122 |
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| 作者姓名： | 左启华 李会彬 张立峰 杜雄 边秀举 |
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| 作者单位： | 1. 河北农业大学农学院,河北保定,071001;农业部张北农业资源与生态环境重点野外观测试验站,河北张家口,076450
2. 河北农业大学农学院,河北保定,071001 |
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| 基金项目： | 国家“十一五”科技支撑计划(2006BAD15B05)、河北省“十一五”科技支撑计划(06220901D)、中加合作IPNI项目 |
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| 摘 要： | 在冀西北高寒区旱砂地条件下,研究钾肥施用量对饲用玉米产量和营养品质、根系吸收能力的影响。结果表明,施钾肥显著提高了饲用玉米的生物产量,增产5.3%～27.7%;施钾肥降低了粗蛋白、粗脂肪、全磷含量,显著增加了粗纤维、粗灰分和全钾含量,增加幅度分别为6.9%、18.0%和85.9%,3个施钾肥处理生物累积量分别提高36.1%、50.4%和137.1%;施钾肥明显提高了伤流强度、各养分流量和钾离子浓度,其中,钾离子流量和浓度分别提高240.7%和42.9%,降低了茎基部伤流液中全氮和无机磷的浓度。均衡养分管理是提高饲用玉米产量及肥料效应的关键。
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| 关 键 词： | 饲用玉米 钾肥 生物产量 营养品质 |
| 收稿时间： | 2010-01-26 |
Effects of Potassium on Biomass and Forage Quality of Forage Maize in Cold Plateau of North China |
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| ZUO Qi-hu,LI Hui-bin,ZHAG Li-feng,DU Xiong,BIAN Xiu-ju. Effects of Potassium on Biomass and Forage Quality of Forage Maize in Cold Plateau of North China[J]. Journal of Maize Sciences, 2011, 19(2): 119-122 |
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| Authors: | ZUO Qi-hu LI Hui-bin ZHAG Li-feng DU Xiong BIAN Xiu-ju |
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| Affiliation: | ZUO Qi-hua1,2,LI Hui-bin1,ZHAG Li-feng1,DU Xiong1,BIAN Xiu-ju1(1.College of Agronomy,Agricultural University of Hebei,Baoding 071001,2.Zhangbei Agriculture Resource and Ecological Environment Key Field Research Station,Ministry of Agriculture,Zhangjiakou 076450,China) |
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| Abstract: | A field experiment was conducted to study the effects of potassium application rate on biomass yield,forage quality,and root absorption capacity of forage maize in sand chestnut soil.The results indicated that potassium fertilizer increased forage maize biomass yield by 5.3%-27.7%.Potassium fertilizer depressed crude protein,ether extract and total phosphorus content.Meanwhile,which significantly increased content of crude fiber,crude ash and total potassium by 6.9%,18.0% and 85.9%,and the bio-accumulation ... |
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| Keywords: | Forage maize Potassium fertilizer Biomass Nutritional quality |
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